Atoms, molecules, elements - SMS 6th grade

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Across
  1. 2. two or more of the SAME atoms bonded together
  2. 5. organizes all discovered elements in rows and columns according to increasing atomic number
  3. 7. one type of atom
  4. 9. a number found with every element on the periodic table that also determines how many protons are in each element
  5. 10. the weight of an atom found on the periodic table. This number helps you find the number of neutrons
Down
  1. 1. symbols and numbers that represent the amount and types of atoms present in a compound
  2. 3. a substance that is composed of only one type of atom or molecule
  3. 4. a unique abbreviation for every element that always starts with a CAPITAL letter
  4. 6. smallest unit of matter that cannot be divided
  5. 8. two or more DIFFERNT atoms bonded together